نتایج جستجو برای: thymus carmanicus jalas

تعداد نتایج: 16161  

Journal: :Cancer research 1977
M Haas T Sher S Smolinsky

The role of the thymus in induction of leukemia was studied in vitro. Curltivation of normal thymus cells on thymus epithelial reticulum cell monolayers that had been grown from radiation leukemia virus-induced leukemic thymuses rendered the thymocytes leukemic. C57BL/6 thymocytes were cultivated for 3 days on leukemic thymus reticulum monolayers, and 106 thymocytes were injected i.p. into youn...

2004
Cunlan Liu Tomoo Ueno Sachiyo Kuse Fumi Saito Takeshi Nitta Luca Piali Hideki Nakano Terutaka Kakiuchi Martin Lipp Georg A. Hollander Yousuke Takahama

During embryonic development, T lymphoid precursor cells colonize the thymus. Chemoattraction by the fetal thymus is thought to mediate T precursor cell colonization. However, the molecules that attract T precursor cells to the thymus remain unclear. By devising time-lapse visualization in culture, the present results show that alymphoid fetal thymus lobes attract T precursor cells from fetal l...

ژورنال: :مجله تحقیقات دامپزشکی (journal of veterinary research) 2008
رسول شهروز شاپور حسن زاده منصور امین کهریز

for developmental study of thymus in different stages offetal period, from thymus glands of75 healthy fetuses. histological sections were prepared and stained by h&e, pas, verhoeff, toluidine blue and van geisson's methods. this study revealed that, the infiltration and accumulation of lymphocytes in thymus takes place at second month. medullae were expanded and cortices were seen as accumu...

Journal: :Blood 2005
Cunlan Liu Tomoo Ueno Sachiyo Kuse Fumi Saito Takeshi Nitta Luca Piali Hideki Nakano Terutaka Kakiuchi Martin Lipp Georg A Hollander Yousuke Takahama

During embryonic development, T-lymphoid precursor cells colonize the thymus. Chemoattraction by the fetal thymus is thought to mediate T-precursor cell colonization. However, the molecules that attract T-precursor cells to the thymus remain unclear. By devising time-lapse visualization in culture, the present results show that alymphoid fetal thymus lobes attract T-precursor cells from fetal l...

Journal: :The Journal of Biophysical and Biochemical Cytology 1957
Eugene L. Hess Saima E. Lagg

A chemical fractionation procedure, previously found applicable to bovine thymus and bovine and ovine palatine tonsils, was used to fractionate rabbit and hog thymus. With respect to the chemical fractionation steps, yields of fractions, and optical and electrophoretic properties, extracts from hog and rabbit thymus were indistinguishable from similar extracts prepared from calf thymus. The stu...

Journal: :The Journal of Experimental Medicine 1980
R M Zinkernagel A Althage E Waterfield B Kindred R M Welsh G Callahan P Pincetl

Congenitally thymusless nude mice that lacked functional T cells were reconstituted with H-2-compatible or -incompatible thymus grafts taken from either fetal, newborn, or adult mice and transplanted under the kidney capsule or subcutaneously. Transplantation with unirradiated fetal (15--17 d) or newborn thymus grafts reconstituted the nude mice as assessed by their subsequent generation of vir...

Journal: :Journal of obstetrics, gynecology and cancer research 2022

Background & Objective: The thymus gland significantly affects fetal immune system maturation. Additionally, there is a linear association between size and its performance. Given the high prevalence of vitamin D deficiency in Iran scarce studies with conflicting results, subjecting maternal concentration effect on thymus, we decided to investigate relation mid-gestation. This study also aimed g...

Journal: :Immunological reviews 2006
Ana Misslitz Günter Bernhardt Reinhold Förster

Maintenance of the peripheral T-cell pool throughout the life requires uninterrupted generation of T cells. The majority of peripheral T cells are generated in the thymus. However, the thymus does not contain hematopoietic progenitors with unlimited self-renewing potential, and continuous production of T cells requires importation of such progenitors from the bone marrow into the thymus. Thymus...

Journal: :Journal of immunology 2008
Susanna M Müller Claus C Stolt Grzegorz Terszowski Carmen Blum Takashi Amagai Nicoletta Kessaris Palma Iannarelli William D Richardson Michael Wegner Hans-Reimer Rodewald

The endodermal epithelial thymus anlage develops in tight association with neural crest (NC)-derived mesenchyme. This epithelial-NC interaction is crucial for thymus development, but it is not known how NC supports thymus development or whether NC cells or their progeny make any significant contribution to the adult thymus. By nude mouse blastocyst complementation and by cell surface phenotype,...

2003
DAHLIA HURVITZ

Thymic lymphocytes are continuously replaced by stem cells entering the thymus. The thymus of animals receiving lethal total body irradiation, followed by administration of bone marrow or spleen cells, is repopulated by cells derived from the inoculure (1-6). Similarly, repopulation of the unirradiated thymus eventually occurs in animals in which only the lower third of the body was irradiated ...

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